At some point (later today? tomorrow?) PT110 will change voltage ranges and will then be showing comparatively lower pressure values. After this occurs it will be helpful to revisit the state of the alarm texting system such that the Vacuum group receive alarm texts should PT100 or PT110 indicated pressures exceed X torr -> where "X" is the preset, traditional threshold pressure value (5 x 10-6 torr?).
0725 hrs. local -> Leaving site now
david.barker@LIGO.ORG - 09:43, Saturday 24 November 2018 (45475)
The nominal high alarm levels for PT100 (HAM1) and PT110 (HAM6) are 5.0e-05 Torr. Both of these gauges are currently in the 2.0e-06 Torr range. We can either wait until they drop below 5.0e-05 Torr or raise the alarm level to re-engage the cell phone alarms.
At some point (later today? tomorrow?) PT110 will change voltage ranges and will then be showing comparatively lower pressure values. After this occurs it will be helpful to revisit the state of the alarm texting system such that the Vacuum group receive alarm texts should PT100 or PT110 indicated pressures exceed X torr -> where "X" is the preset, traditional threshold pressure value (5 x 10-6 torr?).
0725 hrs. local -> Leaving site now
The nominal high alarm levels for PT100 (HAM1) and PT110 (HAM6) are 5.0e-05 Torr. Both of these gauges are currently in the 2.0e-06 Torr range. We can either wait until they drop below 5.0e-05 Torr or raise the alarm level to re-engage the cell phone alarms.